Physics
What is the velocity ratio of a single fixed pulley?
Machines
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Answer
The velocity ratio of a single fixed pulley is 1. If the point of application of effort E moves a distance d, then the load L also moves the same distance d upwards.
i.e. if dE = dL = d then V.R. = 1
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Related Questions
Assertion (A): The mechanical advantage of class III levers is always less than 1.
Reason (R): This is because the effort arm is always greater than the load arm.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true and R is not the correct explanation of A.
- assertion is false but reason is true.
- assertion is true but reason is false.
What is the ideal mechanical advantage of a single fixed pulley? Can it be used as a force multiplier?
In a single fixed pulley, if the effort moves by a distance x downwards, by what height is the load raised upwards?
Name a machine which is used to:
(a) multiply force
(b) multiply speed, and
(c) change the direction of force applied.